CVE-2016-8399: Infoleak
First published: Mon Dec 05 2016(Updated: )
A flaw was found in the Linux networking subsystem where a local attacker with CAP_NET_ADMIN capbilities could cause an out of bounds read by creating a smaller-than-expected ICMP header and sending to its destination via sendto(). Due to lack of size checking on ICMP header length, it is possible to cause out-of-bounds read on stack, this stack data may be included in the outgoing packet data if it can be validated (infoleak). Upstream patch: <a href="https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0eab121ef8750a5c8637d51534d5e9143fb0633f">https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0eab121ef8750a5c8637d51534d5e9143fb0633f</a>
Credit: security@android.com security@android.com security@android.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | =3.10 | |
| Linux Linux kernel | =3.18 | |
| Linux Linux kernel | >=3.19<4.1.37 | |
| Linux Linux kernel | >=4.2<4.4.38 | |
| Linux Linux kernel | >=4.5<4.8.14 | |
| Google Android | ||
| debian/linux | 5.10.223-1 5.10.226-1 6.1.115-1 6.1.119-1 6.11.10-1 6.12.5-1 |
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Reference Links
- http://rhn.redhat.com/errata/RHSA-2017-0817.html
- http://www.securityfocus.com/bid/94708
- https://access.redhat.com/errata/RHSA-2017:0869
- https://access.redhat.com/errata/RHSA-2017:2930
- https://access.redhat.com/errata/RHSA-2017:2931
- https://source.android.com/security/bulletin/2016-12-01.html
- https://support.f5.com/csp/article/K23030550?utm_source=f5support&utm_medium=RSS
- https://support.f5.com/csp/article/K23030550?utm_source=f5support&amp;utm_medium=RSS
- https://launchpad.net/bugs/cve/CVE-2016-8399
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0eab121ef8750a5c8637d51534d5e9143fb0633f
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1403834
- https://access.redhat.com/support/policy/updates/errata/
- https://rhn.redhat.com/errata/RHSA-2017-0817.html
- https://bugzilla.redhat.com/show_bug.cgi?id=1403833
- https://support.f5.com/csp/article/K23030550?utm_source=f5support&%3Butm_medium=RSS
- https://source.android.com/docs/security/bulletin/2016-12-01 (Advisory)
- https://git.kernel.org/linus/0eab121ef8750a5c8637d51534d5e9143fb0633f
- https://security-tracker.debian.org/tracker/CVE-2016-8399
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-8399
- https://nvd.nist.gov/vuln/detail/CVE-2016-8399
- https://ubuntu.com/security/CVE-2016-8399
Frequently Asked Questions
What is the severity of CVE-2016-8399?
The severity of CVE-2016-8399 is rated as Moderate.
How does CVE-2016-8399 affect Ubuntu Linux?
CVE-2016-8399 affects Ubuntu Linux versions 4.4.0-62.83, 4.8.0-37.39, and 4.9.
Which version of the Linux kernel is affected by CVE-2016-8399?
The Linux kernel versions up to and exclusive of 4.9 are affected by CVE-2016-8399.
How can the elevation of privilege vulnerability in the kernel networking subsystem be exploited?
The elevation of privilege vulnerability in the kernel networking subsystem can be exploited by a local malicious application to execute arbitrary code within the context of the kernel.
Are there any remediation steps available for CVE-2016-8399?
Yes, upgrading to Linux kernel version 4.9 or later can mitigate the vulnerability.
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